18 



TELL IN A. 



Linn* names. Gm. Engl. names. Synonyms. Habitat. 



14 insequilatera 3231 unequal-sided G.t.88,f.C. W.p.151. u. 



15 Knorrii 3231 Knorr's K.5,t.21,f.5. W.p.151. u. 



16 pusilla 3231 minute W.p. 152. S.Fluss.t.4, 



f. 7, a.b. Europe, Fr. w. 



17 obliqua oblique #>.152,*.41,/.4,5. u. 



18 maculata spotted L.T.3,p.252. W. p. 15 3. Britain. 



19 amnica river G. t. 7,/. C. C. C. 6, t. 13, 



/.134. Z).*.64,/.2. M. 

 p. 86. W.p. 153, *. 47, 

 /.6. Z)r. f. 10, /.1 7. 



Britain, Fr. w. 



20 foliacea 3232 foliaceous C. 6, 1. 10,/. 95. .M. 



f.287,/. 4. W.p. 154, 



J. 36,/. 1 . Indian Ocean. 



21 albida 3231 whitish W.p. 154. Europe. 



22 tenuis thin Z.*.405,/.251. C.6,U2, 



/.117. D.t.l9,f.2. M. 

 p. 59. W.p. 155, .44, 

 /. 3,4. Britain, &c. 



23 fabula 3239 semi-striated D.t.97. M.p.61. W.p.156, 



<.45,/.4. 



24 planata 3232 flat ..2,/9. G.t.89,f.G. 



W.p.lol. u. 



25 acuta sharp-edged JF.p.l57,.44,/.l. West Indies. 



26 radiata 3232 rayed L. t. 393, f. 240. G.t. 89, 



/.I. E.M.t.289,f. 2. 

 C. 6,f. 11, /. 102. JF. 

 2>.158,.38,/.2,3. S. America. 



27 sanguinea red JF.^.159,.44,/.2. u. 



